Fountain-pen



(No Model.)

L. MARTIN.

FOUNTAIN PEN.

No. 558,293. Y Patented Apr. 14, 1896.

WITNESSES. INVENTUH W X MMM W By U\.\I\UYM ATTORNEY UNITED STATES ATENT OFFICE.

LElVIS MARTIN, OF NElV YORK, N. Y.

FOUNTAIN-PEN.

SPECIFICATION forming part of Letters Patent No. 558,293, dated April 14, 1896.

Application filed October 10, 1895. Serial No. 665,223. (No model.)

To aZZ whom it may concern.-

Be it known that I, LEWIs MARTIN, a citizen of the United States, residing in the city, county, and State of New York, have invented a new and useful Improvement in Fountain- Pens, of which the following is a specification.

My invention relates especially to that class of pens provided with a fountain for supplying the ink to the pen, and has for its object the provision of a simple, cheap, and effective pen the barrel or ink-reservoir whereof may be securely closed, preventing leakage of the ink.

To attain the desired end, my invention consists, essentially, in certain novel and useful combinations or arrangements of parts and peculiarities of construction and operation, all of which will be hereinafter first fullydescribed, and then pointed out in the claims.

In the accompanying drawings, forming a part hereof, Figure 1 is a longitudinal sectional view of a fountain-pen embodying my invention. Fig. 2 is a side elevation of the valve-spindle removed from the ink-fountain. Fig. 3 is a cross-sectional view at line 00 a; of Fig. 1.

Like numerals of reference, wherever they occur, indicate corresponding parts in all the figures.

1 is the body or barrel of the pen forming an ink reservoir or fount.

2 is the pen proper, mounted in a hollow screw-threaded holding-thimble 3, arranged to screw into the reservoir 1.

4 is the ink-passage through the thimble 3.

5 is a cap for covering the pen when not in use, preventing injury thereof.

6 is a screw-threaded cap arranged to engage with the extremity of the ink-reservoir opposite to the pen. This cap is perforated for the reception of a spindle 7, screw-threaded at its outer end for engaging with a nut 8, holding the spindle in place in the cap 6.

9 is a washer fixed upon the spindle 7 just inside of the cap 6.

10 is a guide-diaphragm fixed within the barrel 1 and perforated for the passage of the spindle '7. Below the washer 9 is located a double conical spring-packing 11, formed of soft rubber in two parts, and occupying the space between the washer 9 and diaphragm 10.

12 is a star-shaped guide fixed upon the spindle, allowing free passage of ink, and 13 is a soft-rubber stopper fixed upon the lower extremity of said spindle.

lVhen constructed and arranged in accordance with the foregoing description, the operation of my improved fountain-pen is as follows: After filling the reservoir with ink by removing the thimble 3, the cap 5, for convenience, is placed upon the cap 6 in the well-known manner. By slightly loosening or unscrewing the cap 6 upon the barrel 1 the stopper 13 is retracted from the ink-passage in the thimble 3, permitting the requisite supply of ink to flow to the pen. When it is desired to shut off the supply of ink, by screwing the cap 6 home the two conical portions of the packing 11 are compressed between the washer 9 and diaphragm 10, forcing the material of said packing. against the walls of the barrel, around the spindle, and against the washer and diaphragm. From the peculiar shape of this packing such compressing effectually prevents any possible passage of ink from the reservoir around the spindle. The operation of forcing the spindle inward compresses the point of the stopper 13 into the ink-passage in the thimble 3, closing the outlet and preventing escape of ink at that part. It will thus be seen that my improved construction insures against the escape of ink at all points when the barrel or reservoir is closed, and the annoyance entailed by leakage is overcome.

Having now fully described my invention, what I claim as new therein, and desire to secure by Letters Patent, is

1. In a fountain-pen, a movable spindle arranged to regulate the flow of ink to the pen, in combination with a soft-rubber packing, formed of two conical portions, surrounding the spindle, and means for compressing said packing, substantially as shown and described. I

2. In a fountain-pen of the character herein specified, a regulating-spindle passing into the fountain in combination with a packing formed in two conical portions, surrounding said. spindle, means for compressing the same around the spindle, and forcing their peripheries against the wall of the pen-barrel, substantially as shown and described.

3. In afountain-pen, the combination with the barrel or ink-reservoir, of a pen-carrier having an ink-passage therethrough; a longitudinal spindle mounted in guides within the barrel; a soft-rubber stopper carried at the lower extremity of the spindle, a cap in which the spindle is fixed, and a'double conical packing arranged substantially as shown and described.

4. In a fountainpen the combinationwith the barrel and regulating-spindle, of a washer fixed upon said spindle; a perforated diaphragm within the barrel and through which the spindle passes; a manipulating-cap in which the spindle is secured, and a double conical packing located between the washer carried by the spindle and the diaphragm in the pen-barrel, substantially as shown and described.

5. A fountain-pen in which is comprised a barrel screw-threaded at both extremities; a

plate backof said stopper; a perforated diaphragm fixed in the pen-barrel, and through which the spindle passes; a double conical soft packing loosely mounted upon the spindle above said diaphragm; a washer fixed upon the spindle above the packing, and a screw-threaded cap to which the spindle is secured, the whole combined and arranged to operate, substantially as shown and described.

LEWIS MARTIN.

\Vitnesses:

A. M. PIERCE, BEATRICE M. DONALDSON. 

